10 \pageunderlay{\placeat{0pt}{0pt}{\crosshair{10pt}}}
12 \def\hd#1{\bigskip\leftline{\bf #1}\medskip}
14 \hd{Box placement: ordinary word, vbox, vtop, vhang, vhanglines}
16 \def\brum{\hbox{Brum}}
17 \def\brums{\brum\brum\brum}
20 \placeat{0pt}{0pt}{\vlap{\hbox to 0.5\hsize{\hrulefill}}}%
21 \placeat{0pt}{0pt}{\crosshair{10pt}}%
30 \noindent An~itemized list:
33 \:It is an important and popular fact that things are not always what
34 they seem. For instance, on the planet Earth, man had always assumed
35 that he was more intelligent than dolphins because he had achieved so
36 much -- the wheel, New York, wars and so on -- whilst all the dolphins
37 had ever done was muck about in the water having a good time. But
38 conversely, the dolphins had always believed that they were far more
39 intelligent than man -- for precisely the same reasons.
40 \:Curiously enough, the dolphins had long known of the impending
41 destruction of the of the planet Earth and had made many attempts to
42 alert mankind to the danger; but most of their communications were
43 misinterpreted\dots{} --- Douglas Addams: HHG
47 \: Secundus %% are spaces eaten correctly?
62 Lo and behold: |a quick brown fox| {\showspacestrue |jumps over the lazy dog|} |!@#$%^&*()\_|
65 When turned off, vertical lines work as usually: $|a-b| \ge 0$.
67 Delimited verbatim: \verb@abracadabra@ or \verb|brekeke|.
71 \noindent Pre-verbatim
74 abracadabra {!@#$%^&*()\_}
83 123456789 tab45678 tab
84 123456789 tab45678 tab&space
89 \noindent Post-verbatim
91 %\verbinput{ucwmac.tex}
95 {\bo non-extended bold}
97 {\csc Caps And Small Caps}
99 \loadmathfam \ttfam [/cmtt\fotenc]%
100 ${\tt x}\in\fam\bbfam R$
102 The set{\settextsize{11}text}size macro does not strew spaces.
104 {\tt Typewriter {\it italic} {\sl slanted.}}
108 \algo{Factorial}\algalias{calculate a~factorial}
109 \algin A~non-negative integer~$n$
113 \::Return $n \cdot \alg{Factorial}(n-1)$
114 \algout The factorial of~$n$